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<title>&lt;nl_types.h&gt;</title>
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The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

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<h4><a name = "tag_000_007_910">&nbsp;</a>NAME</h4><blockquote>
nl_types.h - data types
</blockquote><h4><a name = "tag_000_007_911">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

#include &lt;nl_types.h&gt;
</code>
</pre>
</blockquote><h4><a name = "tag_000_007_912">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>&lt;nl_types.h&gt;</i>
header contains definitions of at least the following types:
<dl compact>

<dt><b>nl_catd</b><dd><index term="data type, nl_catd"></index>
Used by the message catalogue functions
<i>catopen</i>(),
<i>catgets</i>()
and
<i>catclose</i>()
to identify a catalogue descriptor.

<dt><b>nl_item</b><dd><index term="data type, nl_item"></index>
Used by
<i>nl_langinfo</i>()
to identify items of
<i>langinfo</i>
data.
Values of objects of type
<b>nl_item</b>
are defined in
<i><a href="langinfo.h.html">&lt;langinfo.h&gt;</a></i>.

</dl>
<p>
The
<i>&lt;nl_types.h&gt;</i>
header contains definitions of at least the following constants:
<dl compact>

<dt>NL_SETD<dd>
Used by
<i><a href="../xcu/gencat.html">gencat</a></i>
when no
<i>$set</i>
directive is specified in a message text source file, see the <b>Internationalisation Guide</b>,
<b>Chapter 3</b>,<b> The Message System</b>.
This constant can be passed as the value of
<i>set_id</i>
on subsequent calls to
<i>catgets</i>()
(that is, to retrieve messages from the default message set).
The value of NL_SETD is implementation-dependent.

<dt>NL_CAT_LOCALE<dd>
Value that must be passed as the
<i>oflag</i>
argument to
<i><a href="catopen.html">catopen()</a></i>
to ensure that message catalogue selection depends on the LC_MESSAGES locale
category, rather than directly on the
environment variable.

</dl>
<p>
The following are declared as functions and may also be defined
as macros.
Function prototypes must be provided for use with an ISO C
compiler.
<pre>
<code>
int       <a href="catclose.html">catclose</a>(nl_catd);
char     *<a href="catgets.html">catgets</a>(nl_catd, int, int, const char *);
nl_catd   <a href="catopen.html">catopen</a>(const char *, int);
</code>
</pre>
</blockquote><h4><a name = "tag_000_007_913">&nbsp;</a>APPLICATION USAGE</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_007_914">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_007_915">&nbsp;</a>SEE ALSO</h4><blockquote>
<i><a href="catclose.html">catclose()</a></i>,
<i><a href="catgets.html">catgets()</a></i>,
<i><a href="catopen.html">catopen()</a></i>,
<i><a href="nl_langinfo.html">nl_langinfo()</a></i>,
<i><a href="langinfo.h.html">&lt;langinfo.h&gt;</a></i>,
the <b>XCU</b> specification,
<i><a href="../xcu/gencat.html">gencat</a></i>.
</blockquote><hr size=2 noshade>
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UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]

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